Function flash_firmware

framework_lib/src/ccgx/hid.rs:289–384

(fw_binary: &[u8])

}

pub fn flash_firmware(fw_binary: &[u8]) {
    let versions = if let Some(versions) = ccgx::binary::read_versions(fw_binary, SiliconId::Ccg3) {
        versions
    } else {
        println!("Incompatible firmware. Need CCG3 firmware.");
        return;
    };

    // Not sure if there's a better way to check whether the firmware is for DP or HDMI card
    let dp_string = b"F\0r\0a\0m\0e\0w\0o\0r\0k\x006\x03D\0i\0s\0p\0l\0a\0y\0P\0o\0r\0t\0 \0E\0x\0p\0a\0n\0s\0i\0o\0n\0 \0C\0a\0r\0d\0";
    let hdmi_string = b"F\0r\0a\0m\0e\0w\0o\0r\0k\0(\x03H\0D\0M\0I\0 \0E\0x\0p\0a\0n\0s\0i\0o\0n\0 \0C\0a\0r\0d\0";
    let filter_devs = if util::find_sequence(fw_binary, hdmi_string).is_some() {
        [HDMI_CARD_PID]
    } else if util::find_sequence(fw_binary, dp_string).is_some() {
        [DP_CARD_PID]
    } else {
        println!("Incompatible firmware. Need DP/HDMI Expansion Card Firmware.");
        return;
    };

    let fw1_rows = versions.backup_fw.size / versions.backup_fw.row_size;
    let fw2_rows = versions.main_fw.size / versions.main_fw.row_size;

    println!("File Firmware:");
    println!("  {}", device_name(FRAMEWORK_VID, filter_devs[0]).unwrap());
    println!("  {}", versions.main_fw.base_version);

    // First update the one that's not currently running.
    // After updating the first image, the device restarts and boots into the other one.
    // Then we need to re-enumerate the USB devices because it'll change device id
    let mut api = HidApi::new().unwrap();
    let devices = find_devices(&api, &filter_devs, None);
    if devices.is_empty() {
        println!("No compatible Expansion Card connected");
        return;
    };
    for dev_info in devices {
        // Unfortunately the HID API doesn't allow us to introspect the USB
        // topology because it abstracts USB, Bluetooth and other HID devices.
        // The libusb API does allow that but it's lower level and requires
        // root privileges on Linux.
        // So we can't figure out which port the card is connected to.
        // Would be nice to show that instead of the serial number.
        // We want to show that so the user knows that multiple *different*
        // cards are being updated.
        let sn = dev_info
            .serial_number()
            .expect("Device has no serial number");
        let dev_name = device_name(dev_info.vendor_id(), dev_info.product_id()).unwrap();
        println!();
        println!("Updating {} with SN: {:?}", dev_name, sn);

        let device = dev_info.open_device(&api).unwrap();
        magic_unlock(&device);
        let info = get_fw_info(&device);
        println!("Before Updating");
        print_fw_info(&info, true);